This is 100% not true.
> An effective education requires a certain amount of torture, and it works better when self inflicted.
It's the tortured artist myth. You can turn pain into art but it's not a prerequisite.
Quite the opposite in fact. Throughout history the most successful artists have been the well funded ones.
Over-emphasized maybe, but myth? Could Doyle have written a sympathetic lonely depressed addict so well without more than academic understanding of those things?
Yeh, I agree with this. My art (painting and building) comes at a much faster rate when I am content. Having time and metal space to contemplate colour scheme, being confident to start something bold: that doesn't happen if I am tired, preoccupied or depressed